When I remove the portafilter from the group on my Europicolla, there is a violent release of pressure that sprays coffee grounds everywhere. The pressure is slight on the first pull, more pronounced by the second, and dramatic by the third. I don't think that the grind is too fine, because it pulls very smoothly. I always make sure the lever is all the way down and I let it drip for about a minute before removing the portafilter. Does anyone know what could be causing this?

It's called portafilter sneeze. The LaPavonis are one of the worst. You can either let it sit and let the pressure dissipate after each shot, or start to remove the portafilter slowly and once you hear pressure being released, let it sit till all the pressure is gone.Ben

I do not have this machine so shooting from the hip on this one..... Is it blowing down when your done pulling the shot? You should have a Phhhhsssshhhhh gurgle gurgle sound? If not your pressure is not releasing is it a E61 group head?

May be in dire need to be back flushed 12 or more times like back flush 5 times (using a blank portafilter) pull a 2 oz shot of straight water (regular portafilter in place) repeat till you have a good blow down group head is plugged or your not putting the leaver in the right position to establish the blow down. You will have to keep cleaning the machine this way till you get a good blow-down or into the shop it goes.

Just went and looked the machine up! Could not find anything on here about it so on to google. Its about as manual a machine as you can get so forget everything i said above for this machine!!!

It's called portafilter sneeze. The LaPavonis are one of the worst. You can either let it sit and let the pressure dissipate after each shot, or start to remove the portafilter slowly and once you hear pressure being released, let it sit till all the pressure is gone.Ben

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